env-schema-checker

A simple tool to validate and generate environment variables from a schema, including .env.example and TypeScript definitions.

Features

• Automatically generate .env.example
• Generate TypeScript env.d.ts definitions
• Supports string(), number(), and enumType() types
• Handles required and default values
• Automatic .build() normalization

Installation

npx env-schema-checker <schema-file> [--init] [--types]

Usage

CLI Examples

Generate .env.example:

npx env-schema-checker ./env.schema.js --init

Generate TypeScript definitions (env.d.ts):

npx env-schema-checker ./env.schema.js --types

Schema Example

import { string, number, enumType } from 'env-schema-checker'

export default {
  PORT: number().required(),
  NODE_ENV: enumType(['dev', 'prod']).default('dev'),
  DATABASE_URL: string().required()
}

License

MIT License